ALEXANDRIA, Va., June 17 -- United States Patent no. 12,317,021, issued on May 27, was assigned to Beijing Honor Device Co. Ltd. (Beijing).
"Earphone" was invented by Chienfeng Yeh (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiment of this application provides an earphone. The earphone includes at least a housing and at least one eartip. The housing includes a housing body and a sound outlet connected to the housing body. At least one first vent hole is disposed on the housing. When the eartip cooperates with the sound outlet, the at least one first vent hole is completely exposed or at least partially shielded, which can effectively alleviate an occlusion effect while avoiding impact on soun...